Question

Cisco Pix Blocking port 5060 for Remote VoIP Phones

Asked by: TJacoberger1

We have a Cisco Pix with Version 6.0(2) for our firewall.  We were advised that port 5060 for sip is not working from our vendor.  Below is the Code, all ports are open.  I dont see whats being blocked.

PIX Version 6.0(2)
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password wHtKJXcWqAkz0JQw encrypted
passwd wHtKJXcWqAkz0JQw encrypted
hostname fw
domain-name default
fixup protocol ftp 21
fixup protocol http 80
fixup protocol h323 1720
fixup protocol rsh 514
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol sip 5060
fixup protocol skinny 2000
fixup protocol rtsp 554
names
access-list 101 permit ip 192.168.22.0 255.255.255.0 192.168.254.0 255.255.255.0
access-list 101 permit ip 192.168.22.0 255.255.255.0 192.168.11.0 255.255.255.0
pager lines 24
logging on
logging buffered warnings
no logging message 106015
no logging message 302002
interface ethernet0 auto
interface ethernet1 auto
mtu outside 1500
mtu inside 1500
ip address outside 1.1.1.1 255.255.255.248
ip address inside 192.168.22.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool ijwhite 192.168.11.100-192.168.11.150
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list 101
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
static (inside,outside) tcp interface www 192.168.22.245 www netmask 255.255.255.255 0 0
static (inside,outside) tcp interface smtp 192.168.22.245 smtp netmask 255.255.255.255 0 0
static (inside,outside) tcp interface 3389 192.168.22.245 3389 netmask 255.255.255.255 0 0
static (inside,outside) tcp interface 5000 192.168.22.151 5000 netmask 255.255.255.255 0 0
static (inside,outside) tcp interface 4000 192.168.22.8 4000 netmask 255.255.255.255 0 0
static (inside,outside) udp interface 2088 192.168.22.254 2088 netmask 255.255.255.255 0 0
static (inside,outside) udp interface 5060 192.168.22.254 5060 netmask 255.255.255.255 0 0
static (inside,outside) tcp interface 8081 192.168.22.254 8081 netmask 255.255.255.255 0 0
conduit permit icmp any any echo
conduit permit icmp any any echo-reply
conduit permit udp any eq 5993 any
conduit permit tcp any eq 5993 any
conduit permit tcp host 1.1.1.1 eq 3389 any
conduit permit tcp host 1.1.1.1 eq smtp any
conduit permit tcp host 1.1.1.1 eq www any
conduit permit tcp host 1.1.1.1 eq 5909 any
conduit permit tcp host 1.1.1.1 eq 5000 any
conduit permit tcp host 1.1.1.1 eq 4000 any
conduit permit udp host 1.1.1.1 eq 2088 any
conduit permit udp host 1.1.1.1 eq 5060 any
conduit permit tcp host 1.1.1.1 eq 8081 any
route outside 0.0.0.0 0.0.0.0 1.1.1.2 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h323 0:05:00 si
p 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
http 192.168.22.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
no sysopt route dnat
crypto ipsec transform-set cns esp-des esp-md5-hmac
crypto dynamic-map cisco 1 set transform-set cns
crypto map newmap 10 ipsec-isakmp dynamic cisco
crypto map newmap interface outside
isakmp enable outside
isakmp key ******** address 0.0.0.0 netmask 0.0.0.0
isakmp identity address
isakmp policy 10 authentication pre-share
isakmp policy 10 encryption des
isakmp policy 10 hash md5
isakmp policy 10 group 1
isakmp policy 10 lifetime 28800
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption des
isakmp policy 20 hash md5
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
vpngroup vpn3000 address-pool default
vpngroup vpn3000 dns-server 192.168.22.245 192.168.22.240
vpngroup vpn3000 default-domain default
vpngroup vpn3000 split-tunnel 101
vpngroup vpn3000 idle-time 1800
vpngroup vpn3000 password ********
telnet 192.168.22.240 255.255.255.255 inside
telnet 192.168.22.250 255.255.255.255 inside
telnet 192.168.22.245 255.255.255.255 inside
telnet 192.168.22.0 255.255.255.0 inside
telnet timeout 10
ssh 0.0.0.0 0.0.0.0 outside
ssh timeout 60
terminal width 80
Cryptochecksum:c0f6e3d81b8922921565b3c2b7866e7e
fw#

                                  
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Asked On
2009-09-16 at 14:47:39ID24738078
Topics

Cisco PIX Firewall

,

IP Telephony

Participating Experts
2
Points
500
Comments
4

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Answers

 

by: kenboonejrPosted on 2009-09-16 at 17:03:31ID: 25351614

Here are a couple of things to try:

Add this:

fixup protocol sip udp 5060

Also, you are running a really old version of pix software.  I would at least upgrade to 6.3(5).

Here is a document that might help you with troubleshooting this:

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00801fc74a.shtml

Also not the comments about what version of code support NAT but not PAT.  If though you are using a static command, the fact that you are translating based on ports might make this fall under the category of PAT, which isn't supported until you get to version 6.2.

Hope that helps.

 

by: rsivanandanPosted on 2009-09-17 at 06:41:36ID: 25355991

Seriously, get to 6.3(5) first.

Cheers,
rsivanandan

 

by: TJacoberger1Posted on 2009-09-17 at 07:18:05ID: 25356498

fixup protocol sip udp 5060

isnt supported, I will look into upgrading but I would have to be onsite.

 

by: TJacoberger1Posted on 2009-10-02 at 15:32:48ID: 31629734

Upgrade, added command line.  Everything is up and running.

20120131-EE-VQP-002

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